X725 USB DAC & AMP User s Manual TVLogic Co., Ltd. owns all intellectual property rights to the technical information detailed in this manual. This manual may only be used by and distributed to authorized parties. Duplication or distribution of this manual to unauthorized parties is strictly prohibited.
Table of Contents 1. Introduction 1.1. Warranty 1.2. Precautions 1.3. Contents 1.4. Quick Start 1.5. Product Description 1.5.1. Front Panel 1.5.2. Rear Panel 1.6. Internal Components........................... 3 3 4 5 6 7 7 8 9 1.7. X725 Technical Specifications and Block Diagram... 11 1.7.1. Main Features 1.7.2. Block Diagram... 11... 11 2. X725 Operation 2.1. Basic Connections 2.1.1. AC Power Connection 2.1.2. USB 2.0 Cable Connection 2.1.3. Speaker Connection 2.2. Using the X725 with USB connected (X100) 2.3. Using the X725 with SPDIF 2.4. Remote Control... 12... 13... 13... 13... 14... 15... 15... 16-2-
1. Introduction 1.1. Warranty The warranty period for the Aurender X725 DAC Amplifier is two years from the date of purchase and includes parts and labor. The warranty is nontransferable and excludes damage due to (i) normal wear and tear, (ii) abuse, misuse, or neglect, (iii) repair, attempted repair, or any modifications by anyone not authorized by TVLogic or its distributors. After inspection, TVLogic will at its discretion repair, adjust or replace the product free of charge. Users are responsible for shipping the products to TVLogic or an authorized service center, and TVLogic will pay for return shipping provided the repair is under warranty. For any technical support issues, please use the Remote Support Request feature of the Aurender App or contact support@aurender.com. The Aurender X725 is designed to be used with the Aurender X100 Music Player and speakers with peak power ratings above 250W and can be used with other auxiliary components. -3-
1. Introduction 1.2. Precautions Read the following instructions carefully before setting up or making any connections to the Aurender X725. Be careful not to drop or mishandle the device to avoid internal damage. Do not disassemble the device. Do not expose device to oil, dust, water, high humidity, or smoke. Keep the device in a well-ventilated area and ventilation openings free from obstruction. When cleaning, use only a soft cloth. Keep out of contact with water or other liquids. All servicing must be performed by a qualified technician, or the warranty will be voided. Unplug power cord during severe lightning or when unused for a long period of time. Unplug the device from the outlet only after completely turning off the unit. Always turn the power off before connecting or disconnecting any cables. Always make sure that the AC voltage matches the voltage stated in the rear panel mains inlet. Ensure that the left and right speaker channels are properly connected to prevent reversed polarity. Care must be taken not to short the speaker connections in order to prevent damage to the device. <Warning> Always turn the power off before connecting or disconnecting any cables and ensure that all devices are grounded in order to prevent any damage to the Aurender or any other components in the audio system. -4-
1. Introduction 1.3. Contents AURENDER X725 DAC Amplifier Power Cable USB A to B Cable Remote Control and Battery User Manual -5-
1. Introduction 1.4. Quick Start Connect Ethernet cable between X100 and router. Connect USB cable between X100 and X725. Connect speaker cable between X725 and stereo speakers. Connect power cable to X100 and X725. Turn on the X100 AC power switch and press the front power button. Turn on the X725 AC power switch. Execute Aurender App on ipad and connect to the X100 music server. Select songs and play it. Adjust volume and enjoy it. 3 Speaker X725 4 Power 2 USB X100 1 Gigabit Ethernet ipad Remote Control -6-
1. Introduction 1.5. Product Description 1.5.1. Front Panel 1 2 3 4 Figure 1. X725 Front Panel On the front panel of the X725 are the volume control knob, LED indicator light and remote control receiver sensor as shown in Figure 1. Table1. X725 Front Panel 1 2 3 4 X725 Front Panel Aurender logo Remote control IR sensor Volume control knob LED light Power On/Off, Mute, Volume Up/Down, Previous, and Next can also be controlled by using the included remote control. Volume can be adjusted from -96 dbfs to 0 dbfs in 0.5 db increments with the initial factory setting being -60 dbfs. When audio is played through the USB input, the LED light will turn white. When audio is being played through SPDIF input, the LED light will turn green. If the volume is adjusted using the remote control, then the LED light will flash intermittently. -7-
1. Introduction 1.5. Product Description 1.5.2. Rear Panel 1 2 3 4 5 6 Figure 2. X725 Rear Panel In the rear panel of the X725, there are the USB audio input, optical SPDIF input, speaker binding posts, power ON/OFF switch and mains power inlet as shown in Figure 2. Table2. X725 Rear Panel 1 2 3 4 5 6 X725 Rear Panel Right Speaker Output USB 2.0 type B connector Optical SPDIF input Left Speaker Output AC Power Switch AC Inlet The maximum output of the Aurender X725 is rated at 250W per channel at 4Ω. Caution should be taken when connecting the speaker cables. The X725 should always be turned off before making any connections and ensure that the left and right speakers are connected to the proper binding posts. The direct current received through the USB input is less than 5V 100mA. The mains voltage of the Aurender X725 can be set at either 220V or 110V AC at the factory. Products set to accept 110V must not be labelled 220V. -8-
1. Introduction 1.6. Internal Components 6 7 1 2 3 5 4 Figure 3. X725 Internal Components The Front board, Linear PSU board, Audio board, Power amp module and Rear board are located within the X725 as shown in Figure 3. Table 3. X725 Internal Components 1 2 3 4 5 6 7 X725 Internal Front board Linear power supply board Audio board Rear board Power amplifier module AC power inlet Binding posts AC power is sent from (6) to (2) by a connecting cable (CABLE_X725-1-M1), and then from (2) to (5) by another cable (CABLE_X725-1-J2 for 220V, or CABLE_X725-1-J1 for 110V). The digital signal from the USB and SPDIF inputs are sent from (4) to (3) by a connecting cable (CABLE_X725-3). The FCC cable (CABLE_X725-2) is used to connect (1) to (3) in order for the LED light to turn on when there is a signal received from the IR sensor or when the volume is changed. -9-
1. Introduction A cable (CABLE_X725-4) connects (2) to (3) and provides DC power to the analog audio signal processing section. A cable (CABLE_X725-5) connects (3) to (5) in order to receive the line input of the power amp. A cable (CABLE_X725-6) connects (5) to (7), the power amp s speaker outputs. Caution must be taken to ensure that the connectors match exactly when soldering (7). Pin 1 of (6) connects to R+ of (7), Pin 2 of (6) connects to R- of (7), Pin 3 of (6) connects to L- of (7), Pin 4 of (6) connects to L+ of (7). -10-
1. Introduction 1.7. X725 Technical Specifications and Block Diagram 1.7.1. Main Features Digital Audio Input : USB Class 2.0 / SPDIF (24bit, 192kHz) Supported Format : AIFF, ALAC, FLAC, WAV, M4A, APE, DSD (64, 128) Remote Control : IR, I-PAD or Android tablet or smart phone via X100 Volume Control Range : -95dB ~ 0dB Output Power : 2 x 230W @ 1% THD+N, 4ohm THD+N : 0.008%(typ.) @ 1W, 8ohm, 1kHz Frequency Response : +/- 0.5dB @ 20Hz ~ 20kHz Digital I/O :1 USB 2.0, 1 optical SPDIF Power Supply : 200 ~ 240Vac 60/50Hz 5A (AUR-X725) 100 ~ 120Vac 60/50Hz 5A (AUR-X725-A) Dimension (Weight) : 215 x 55 x 355 mm (4.7kg) / 8.5 x 2.2 x 14.0 inches (10.4 lbs) 1.7.2. Block Diagram Figure 4. is a function block diagram of the X725 and shows the relationship among the various components which consist of an USB 2.0 Audio Processor, DAC & Conditioner, Power Amp, Power Supply, connectors and other interfaces. Figure 4. X725 Function Block Diagram -11-
2. X725 Operation The Aurender X725 is an all-in-one DAC, pre-amplifier and power amplifier and designed to simplify the task of configuring and setting up an audio system. With the wide range of digital audio sources (music servers, digital audio players, CD players, Blu-ray players, DVD players, etc.) available today, there is a need for an all-in-one DAC, pre-amplifier and power amplifier. By combining the DAC, pre-amplifier and power amplifier, only the music sources and speakers need to be connected. With digital audio inputs, there is no need for left and right channels to be connected. Just a simple USB cable or SPDIF optical cable, power cord, Ethernet cable, and a pair of speaker cables are all you need. An audio system designed around the Aurender X725 and X100 music player will use fewer cables and fewer audio components than a traditional analog based audio system, and can be set up much quicker and more easily. The digital audio signal received from the USB and optical (SPDIF) audio inputs are converted to an analog signal by the internal DAC. The pre-amplifier section controls volume and source selection, and the power amplifier amplifies the audio signal to power the speakers. In the Figure 5, a system diagram of the Aurender X725 connected to the X100 music player and speakers. By combining the DAC and amplifier into one component, the Aurender X725 enables for simple set up and connection, in addition the Aurender X725 and X100 can be controlled through the Aurender App for ipad, making it easy to quickly find, browse and play high resolution digital music files. Figure 5. X-Pac, Convenient Two Component System Configuration. X725 DAC & AMP USB 2.0 X100 Player Stereo Speaker Remote Control ipad w / Aurender App -12-
2. X725 Operation 2.1 Basic Connections The X725 receives digital audio signals through the USB 2.0 and/or Optical SPDIF inputs, converts it to analog form, amplifies it and outputs the signal through the speaker binding posts to drive speakers. With the X100 and X725 connected as shown in Figure 5. using the USB 2.0 port, all functions of both the X100 and X725 can be accessed using the Aurender App for ipad. When volume is changed or other features of the X725 are used, it will be even be shown on the X100 front panel LCD display. The X100 and the X725 are designed to be the foundation for a very compact and very convenient audio system. The Optical SPDIF can also be connected to other digital sources (CD, DVD, Blu-ray) so that the audio can be enjoyed through the X725. 2.1.1. AC Power Connection Figure 6. AC Power Cable Connection The AC power cord should be connected to the AC inlet as shown in Figure 6. The mains power voltage must match the voltage marked next to the AC Inlet. Products marked 110V must be connected to 110V mains power and products marked 220V must be connected to 220V. 2.1.2. USB 2.0 Cable Connection Figure 7. USB 2.0 Cable Connection The USB Audio Class 2.0 port which is marked USB IN as shown in Figure 7 should be connected to a digital audio source, such as the Aurender X100, using an USB 2.0 cable with type B connector. -13-
2. X725 Operation 2.1 Basic Connections 2.1.3. Speaker Connection Figure 8. Speaker Cable Connection In Figure 8 are pictured the speaker binding posts which are marked SPEAKER OUT and - R, - L. Speakers must be connected properly to the binding posts making sure that the polarity is not reversed. 2.2. Using the X725 with USB connected (X100) Figure 9. Connecting the X725 and X100 With the power switch in the OFF position, connect the AC power main to the X100 and X725 using the provided AC power cords. Connect the X100 to the network using a LAN cable. Connect the X100 and X725 using an USB cable. Connect the speakers to the X725 speaker binding posts. Turn on the power to the X725 and X100. Select songs to play by pressing the song title on the ipad to send it to the Queue. (For more details, refer to the X100 User Guide). Volume, Next Song, Previous Song, Play, Pause and other functions can also be controlled using the remote control or Aurender App for ipad. -14-
2. X725 Operation 2.3. Using the X725 with SPDIF Figure 10. The Optical SPDIF input can also be used to listen to other audio sources in addition to the USB input As explained in paragraph 2.2, DVD, Blu-ray players and other digital sources can be connected to the X725 using the optical input in addition to the USB input. On the Aurender App for ipad select SPDIF in the Source selection menu. Volume, Next Song, Previous Song, Play, Pause and other functions can also be controlled using the remote control or Aurender App for ipad. -15-
2. X725 Operation 2.4. Remote Control X725 Remote Control Mute button Power On/Off button Volume/Previous/Next button and Play/Pause button Back button Menu button Volume up button Volume down button Figure 11. Remote Control The Aurender X725 s remote control is shown in Figure 11. At the bottom of the remote control is a small slot, pull the slot and insert the CR2032 with the creased side up. Mute button Mutes audio when pressed Power button Turns off the Aurender X100 when connected using the USB cable (Only works with the Aurender X100 Player). Volume/Previous/Next button and Play/Pause button Press top side of the outer ring to increase volume and the bottom to lower it. To play the previous song, press the left side and to play the next song, press the right side. Pressing the center ring will play or pause the selected song (Only works with the Aurender X100 Player). -16-
2. X725 Operation 2.4. Remote Control Back button Stops play and replays the selection (Only works with the Aurender X100 Player). Menu button Switches inputs from USB to Optical SPDIF (Only works with the Aurender X100 Player). Volume Up Press to increase volume. Volume Down Press to decrease volume. -17-
Smart Audio Division www.aurender.com